#include<stddef.h>
#include<stdlib.h>
#include<stdio.h>
#include<assert.h>
typedef int SLDatatype;
 typedef struct stu
 {
	SLDatatype * a;
	size_t size;
}SeqList;
void first(SeqList*);
void endintsert(SeqList*, SLDatatype);
void SeqListPrint(SeqList* q);
void SeqListInsert(SeqList*, size_t, SLDatatype);
void SeqListCheckCapacity(SeqList* x);
void SeqListDestroy(SeqList*);
void SeqListErase(SeqList*, size_t);
int SeqListFind(SeqList*, SLDatatype);
void SeqListInit(SeqList *);
void SeqListPopFront(SeqList*);
void SeqListpushback(SeqList* , SLDatatype );
void SeqListPopBack(SeqList*);